Solid–solid interface reconstruction at equilibrated Ni–Al2O3 interfaces

Kinetics and thermodynamics associated with Bi adsorption transitions at Cu and Ni grain boundaries

“…The activation energies define the enthalpy terms in Eq. (9). Assuming ga I 2 I */ga II 2 II * is unity, the differences in the entropy of formation may be approximately calculated.…”

“…However, characterizing the degree of structural order or disorder at interfaces exhibiting different complexions has been an ongoing scientific effort. 9,[21][22][23][24] Empirical thermo-kinetic models 25,26 predict that an enthalpic decrease in grain boundary energy should result in reduced diffusivity. Grain growth and sintering studies 1,10 suggest that disordered complexions increase grain boundary transport kinetics while minimizing the grain boundary energy, which hints at the important role of entropy in these interfaces.…”

“…[1][2][3][4][5][6][7][8][9] Sometimes called complexion transitions, they have been linked to traditionally anomalous grain boundary phenomena such as abnormal grain growth, 1 activated sintering, 8,10 and grain boundary embrittlement. 2,5 The associated changes in local grain boundary structure have also been linked to changes in diffusional, 11 electrical, 12 electrochemical, 13 and thermal properties.…”

Encapsulation by segregation – A multifaceted approach to gold segregation in iron particles on sapphire

“…In this case interface-alloying with Au increased the interface energy, meaning that segregation was not favored. Though the termination of our sapphire wafers was not examined, for the Ni/sapphire interface the termination was found experimentally to be of Al at low P(O 2 ), and of O at high P(O 2 ) [59].…”

A review of wetting versus adsorption, complexions, and related phenomena: the rosetta stone of wetting

“…With the introduction of dual-beam focused ion beam (FIB) systems, it is now possible to accurately prepare cross section samples from the center of small crystals equilibrated on substrates [56,57], and make accurate measurements of solid-solid interfacial energy and orientation relationships between the crystal and the substrate [58]. Furthermore, if the cross section transmission electron microscopy (TEM) sample is thin enough [59,60], more advanced TEM techniques can be used to determine the atomistic structure and chemistry of the interface for the same sample [61][62][63]. The size of the crystals must not be too small, since clusters in the nanometer length scale may exhibit variance of equilibrium shapes depending on the particle size and hetero-epitaxial related interfacial stress [64][65][66][67].…”